And frank hammond



(No Model.)

W. ,N.. REDDOUT. MOLD POR PORMING come.

Patented Sept. 23, 1890.

#4187@ 0 l. c j l. Z 9, 6702.4

1H: News persas co., maw-mnu., msnmnrnu. n. c.

" "UNITED STATES.

PATENT OFFICE.

WILLIAM N. lREDDOUT, OF'RSHVILLE, NEV YORK, ASSIGNOR'TO ARTHUR B. BURTIS, OF CLEVELAND, OI-IIO, AND FRANK HAMMOND, OF PIIELPS,

' NEIV YORK.

Moro FOR loaMINe comas.

SPECIFICATION forming part of Letters Patent No. 436,998, dated September 23, 1890.

Application filed Fehryary Z1, 1890. I

To all when@ it may concern,.-

Be it known that I, WILLIAM N. REDDQUT, acitizen of the United States, residing at Rushville, in the county of Yates, State of New York, have invented certain new and useful Improvements in Molds for Forming Cores; and I hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompany- [o ing drawings, wherein- Figure l is a vertical Section of a mold embodying my invention on the line x 00, Figs. 2 and 4. Fig. 2 is a top or plan View of rthe base-section ofthe mold, one-half of the bodyrf; section of the mold being removed. Fig. 3 is a detached perspective view of the removed half of the body-section of mold. Fig. 4 is a plan view or top view of the bodyof the mold, the base-section of the mold omitted. Fig. 5 2o is a plan view of one of the print-cups detached from the base-section. Fig. 6 is a sectional view of the print-cup on the line y y, Fig. 4. Figs. 7, 8, and 9 are plan or top views, base-section omitted, of mod ilied shapes of molds. Like symbols refer to like parts wherever they occur.

My invention relates to the construction of molds for forming cores used in casting metals, and has for its object to provide a mold adapted to produce various-sized cores of any given pattern adapted to be drawnfrom the mold, and also to vary the size of the print for each size of core, or tovary the size of 3 5 prints for different cores of same size.

VTo provide means for varying the size of the print at will, I provide a mold-base having a print-cavity provided with detachable print-cups, which construction or its equiva- 4o lent embodies the mail'n feature of my invention. With such 'a base-section any suitable form of body-mold or body-chamber can be employed. I prefer, however, to use a series of nested or concentric chambers for the body portion of the cores, which enables me to vary the diameter of the core proper as Well as the print thereof, and such construc- 'pion embodies a Asecond feature of my invenion.

power.

serai no. 341,347. un modem Among the minor `features of my invention-viz., the specilic construction of the elements thereof-I prefer to form one half of the outer body-section of the mold integral `witl1 the base-section and secure the detach- 'able outer body-section thereto by hoops or detachable bands, as I thereby secure greater strength-a desirable feature where the cores are to ,be formed by hydraulic or other great,

I also prefer/to combine with the detachable print-cn ps of the base-section a steel rod or equivalent means for centering the cups.

. In the main iigures of the drawings, a cy- ;lindrical moldsuch as would be-used in forming cores for pipes, cylinders, nef-has been selected for purposes of illustration,

vand qnadrangular,hexagonal, and octagonal molds have been shown as modifications. Such forms, however, are not shown or described as matters of limitation, but simply as suggesting changes of form to suit diftereut articles, and a variety of other forms and workshop changes will readily suggest themselves to the skilled workman.

I will now proceed to describe more specifically my invention as illustrated herein, so that others skilled in the art to which it appertains may apply the invention as the circumstances of the case may require.

InA the drawings, l indicates the bottom or base section of a core-mold, and 2 3 the bodysection or the chamber wherein the body of the core is formed. This base-section l may be of east-iron or other suitable material, and is formed with a central depression 4, whose shape Will depend on the form of print desired, and with a ledge or shoulder 5 to receive the detachable outer section or shell 3 of the body-mold. The other outer section or shell 2 of the body-mold is preferably cast or otherwise formed integral with the basesection 1, but can, if desired, be made detachable also, in which case the ledge or shoulders 5 Would extend all around or encircle the print-cavity 4.

6 indicates a print-cup adapted to fit within the print-cavity 4 to reduce the size thereof. Of such print-cups a series (marked 6 6 6b,

Gc, the.) may be formed adapted to ilt one within the other or nested, as shown, and each is preferably provided at its center with a small opening 7, through which passes a center rod S, of steel or other suitable material, the end of said rod entering or being stepped in a center hole 8 of the bottom or base section 1. y

9 9 9i 9C, the., indicate a series of tubes or openended chambers corresponding in number with the print-cups G G, dce., each adapted to shape the bodyseetion of a core of diiferent size or diameter. These tubes or mold-chambes are formed to fit one within the other, or are nested like the print-cups, and the exterior diameter of the outer chamber 9 is such that it fits snugly within the outer or shell sections 2 3 of the mold.

The shell-sections 2 and 8 are held together by steel rings or hoops 10 and 11.

lVhen not in use, the nested tubes D 9", die., and the nested print-cups (5 G, the., may be packed within the base-section 1 and bodysections 2 3, as shown in Fifr. 1, and the mold :may be prepared at any time for forming a core and print of anygiven diameter up to the maximum by removing the interior printcups and tubes until a print-cup and tube of the desired diameter are reached.

If desired, the base l may be formed in two sections held together by a clamp or ring, as indicated by the dotted lines, Fig. 1, and it is my intention to embrace within the scope of my claims a sectional as well as a solid base for the mold. In case the base is made in two sections for facility in removing the core the detachable body-section 3 may, if desired, be formed integral with one section of the base and the body-section 2 integral with the other. .i

In conjunction with the mold, any approved form of follower or plunger may be employed, the same to be operated by hydraulic pressure, steam-power, or in any of the many ways known to the art and commonly followed; but as the press and power form no part of the present invention they have not been shown or described.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s-

l. In a core-mold, the combination, with a base-section having a print-cavity, of a removable print-cup, substantially as and for the purposes specified.

2. In a core-mold, the combination, with a base-section having a print-cavity, of a series of nested print-cups, substantially as and for the purposes specified.

3. In a core-mold, the combination, with a basesection having a print-cavity and a central hole for receiving a center rod, of a detachable print-cup having a central hole for the passage of a center rod, and a center rod, substantially as and for the purposes specified.

4. In a core-mold, the combination, with a base-section having a printeavity, of two or more nested print-cups, each having a central hole for receiving a center rod, and a center rod, substantially as and for the purposes specified.

5. In a core-mold, the combination, with a base-section having a printeavity, of a nest of two or more detachable print-cups, abodysection, and a nest of two or more core-tubes, substantially as and for the purposes specified.

6. In a core-mold, the combination, with a base-section having a print-cavity and one side of the body-section integral with said base-section, of a detachable body-section, rings for securing the detachable bodysection to the Xed sections, one or more detachable print-cups, and one or more detachable core tubes or chambers, substantially as and for the purposes specified.

In testimony whereof I aiiix my signature,

. in presence of two witnesses, this 13th day of February, 1890.

WILLIAM N. REDDOUT.

Witnesses:

JULi'Us Bonn, SiGMUNn Lonwrrn. 

